The dialog can graphically show users the potential effects of the function with a thumbnail picture of what the changes will look like (and of course, on a separate topic, a robust Undo function should be provided for such actions).

• 该对话框还可以以图形化的方式告诉使用者这个功能潜在的效果，比如用缩略图把效果显示出来（当然，另一个话题是为该操作提供坚实可靠的撤销功能）。